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        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>
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    </head>
    <body>
        <textarea name="" id="txt" cols="30" rows="10"></textarea>
        <button id="btn">发布微博</button>
        <ul id="con">
            <li>
                形成两面包夹芝士
                <p>2021-06-05</p>
                <span onclick="del(this)">X</span>
            </li> 
        </ul>
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                <p>2021-06-01</p>
                <span onclick="del(this)">X</span>`;
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                txt.value='';
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            function del(a){
                a.parentNode.parentNode.removeChild(a.parentNode)
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    </body>
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